azure - 为什么我的变量值没有在 azure 管道中更新？

Question

我想根据 git repo 中的提交次数更新变量。我能够正确获取计数，但无法更新变量以供进一步使用。知道出了什么问题。

variables:
  # Versioning
  # Version Format - 'VersionMajor.VersionMinor.VersionRelease.Revision'
  # Currently the Major, Minor and Minor are all constants
  - name: VersionMajorMinorRelease
    value: '1.0.1'
    
  # Revision will be calculated during pipeline run based on total commit counts for branch
  - name: VersionRevision
    value: ''

在工作中，我将变量用作

- task: PowerShell@2
    displayName: Set the build version
    condition: eq('${{ parameters.Action }}', 'BuildAndDeploy')
    inputs:
      targetType: inline
      script: |
        $commitCounts= $(git rev-list --count HEAD)
        $revision= $commitCounts.ToString()
        Write-Host "Revision = '$revision'"
        Write-Host "##vso[task.setvariable variable=VersionRevision]$revision"
        Write-Host "Version of App being built = '$(VersionMajorMinorRelease).$(VersionRevision)'"
      

输出打印 -

Revision = '1660'
Version of App being built = '1.0.1.'

Answer 1

Why is my variable value not getting updated in azure pipeline?

您可以在下一个任务中使用VersionRevision。

根据文档Set variables in scripts :

When you use PowerShell and Bash scripts in your pipelines, it's oftenuseful to be able to set variables that you can then use in futuretasks.

这就是为什么您能够获取计数但无法更新变量以供进一步使用的原因，请尝试在下一个 powershell 任务中回显它。